Improvement in spinning-machines



".PETERS. PHDTQLIYNOGRAPHER. WASHINGTON. D C.

UNITED STATES PATENT EEIC'I.

PAUL ERAMWELL, oE ARRow Rook, AND w. o. BRAMWELL, or INDEPENDENCE, MIssoIIRI.

IMPROVEMENT INy SPINNING-MACHINES.

Specification forming part of Letters Patent No. 99,055, dated January 25, 1870.

'lowing is a full, clear, and exact description of our invention, reference being had to the accompanying drawings, forming a part of this specification, and to the letters of reference marked thereon.

The nature of our invention consists, rst, in the combination, with aset of drawing-rolls, a false twister, and a draft-roller covered with points, of a tension-bar, which is placed close up to the draft-roller, and between two lines drawn from the point of delivery of the roving to the draft-roller, tangent to the upper and lower sides of said roller, and under which the roving passes as it comes from the spool to the draft-roller, the object being to cause the roving to be forced onto or between the points on the draft-roller along a considerable portion of A its circumference, in order to prevent the roving from slipping over the draft-roller while being drawn by the drawing-rolls.

Our invention consists, secondly, in the combination of a set of feed-rolls, tension-bar, draft-roller covered with points, false twister, and set of drawing-rolls, the several parts being so arranged as that the roving is Iirst received by the feed-rolls and kept under a uniform tension as it passes under the tensionbar to the draft-roller, thus insuring the proper impaling of the roving on the points of the draft-roller, and preventing any irregularities in the draft which is produced through the false twister and drawing-rolls, which might otherwise arise from the slacking of the roving behind the tension-bar.

Our invention consists, thirdly, in the conibination of a tension-bar, draft-roller covered with points, false twist'er, set of drawing-rolls, ring and traveler, spindle with movable bobbin, and mechanism for raising and lowering the ring-rail, so as to wind'the yarn evenly on the bobbin, the several parts being so arranged as that the roving shall be received under the tension-bar, and be then passed over the draftroller, through the false twister, and over the desired draft, and from said drawing-rolls shall pass through the traveler-ring on to the bobbin, on which it is wound as twisted yarn, whereby we are enabled to spin any kind of carded wool by a continuous operation, in a perfectly successful Inanner, and without any danger of variation in the draft or ,pulling apart of the roving.

To enable others skilled in the art .to make and use our invention, we will proceed to describe, by the aid of the accompanying drawings, its principles of construction and operation.

In the annexed drawings, Figure l is aside elevation of a machine embodying our inven-` tion. Fig. 2 is a plan of the same. Fig. 3 is an end elevation of the same. Fig. 4 is a longitudinal section of the upper part of the machine. Fig's. 5 are a cross-section of the draftroller, and an enlarged detail of the cover for the same.

rlhe frame of the machine consists of the uprights A A C C, which are united by the side pieces, D D B and the cross-pieces I E F.

The cross-pieces G G are secured between the side pieces D D. The arms J andK are secured in the front side piece D, and the side piece H is secured between the cross-pieces I E, as shown in Figs. l and 3.

The main shaft a is journaled in suitable boxes on the pieces D D, and has secured on it the crank 13, worm 12,'bevel driving-wheel c, and bevel-wheel m, and the swinging arm k is also journaled on said shaft, as shown in Fig. 3. y

The pinion y meshes into the driving-wheel o, and is secured on the shaft 2l, which is held in the standard 2 2, secured to the front side and the pulley z is secured on the shaft 2l, and drives the spindle 15 by means of a belt, (not shown in the drawings,) which passes around it and the pulley on the spindle. The pinion w also meshes into the driving-wheel o, and is secured on the shaft 22, which is journaled in boxes on the cross-piecesG G, and has secured on it the pulley x', which drives the false drawing-rolls, and be thus subjected to the piece D and in a pivot-box in the piece H,

twister f by a belt, (not shown in drawings,)

-. which passes around it and apull ey on the false twister.

The worm-wheel 23 engages with the worm 12, and is secured on the shaft 8, which is stepped in the arm J, and projects through the top plate, L, and has secured on it the bevel-wheel 9, which drives the pinion 1() on the shaft 24E, which shaft is secured in boxes on the under side of top plate, L, and has the cam t secured on it, by which the up and down motions of the ring-rail r are produced. The worin-wheel 5 engages with the worm 12, and is secured on the shaft 4:, which is journaled in the arm K, and stepped in the crosspiece I, and which has secured on it the worm 6, which engages with the worm-wheel 7 on ,the shaft o, which shaft is journaled in boxes on the side pieces B H.

The spindle 15 is stepped in the cross-piece E and journaled in the cross-piece F, and is weighted at the lower end t0 balance the bobbin 16, which is dropped over the spindle in an ordinary manner. L n

The ring-rail r has the ring s secured in it, and is provided with the arms 25 25 at its ends, which arms project through slots in the uprights A A, and have the cords 33 attached to them. These cords pass over the pulleysv p q q q on the top plate, L, and over the cam t to the shaft o, to which they are attached.

The standards M M are secured on the top plate, L, and in them are journaled the feedrolls N N and drawing-rolls P P, said feedrolls being geared together by the gears R S R, and havingthe roller-weight O resting on them, and said drawing-rolls being provided with gear R/ S R and roller-weight Q, in the same manner. The shaft of one of each of the feed and drawing rolls N P is extended out in front of the standards M M, and hasthe friction-wheels T T secured thereon, which wheels f are made with rubber faces to avoid any sliping.

p The standards V V are secured in the top plate, L, and have the shaft WV journaled in them, and on this shaft are arranged the friction-wheels UXU, which are secured on said shaft by clamp-screws, as shown in Fig. 2, so that they may be moved along said shaft to alter the relative velocities of the feed-rolls, draft-roller, and drawing-rolls.

The draft-roller standard b b is of a U form, and is secured at any point along the slot a in the top plate, L, by means of a clamp under said plate and the bolt 19 and nut 20, as shown in Fig. 4. Each arm of the standard -b b is made in a U form, (the inner faces of the arms being of a V shape, as indicated in Fig. 2,.) and in these arms are arranged sliding boxes for the shaft Z of the draft-roller, which boxes are clamped at any desired height by the clamping-screws 26 26, as shown in Fig. 4.

The shaft j y is j ournaled in the swinging arm k on the main shaft n, and is provided with the pinion Z, which meshes into the wheel m on the main shaft. The upper part of the shaft j is journaled in the swinging arm-7L on* the shaft Z of the draft-roller, and is provided with the pinion t', which meshes into the wheel g on the shaft of the draft-roller.

The friction-wheel Y, provided with a rubber face, is secured on the front end of the shaftZ ofthe draft-roller, and drives the frietion-wheel X on the shaft WV, and the wheels U U are arranged to -drive the wheels T T on the feed and drawing rolls, as shown.

The draft-roller@ consists of a cylinder, c, of wood or metal, which is fixed on the shaft Z, and is covered with the cover 17 ,in which are inserted the wire points 18. These points are made of fine wire, bent in a U form, and inserted in the leather cover 17, in the same manner as the teeth of card-cloth; but they are made without the outside bend shown in the teeth of card-cloth, and are bent at the surface of the cover 17 in a directionopposite to the direction of the draft-roller, and have their points ground down to a surface parallel or nearly parallel to the cover 17, as shown in Figs.A 5, the obj ect of this construction being to obtain such a form of tooth or point as will readily enter and leave the roving without breaking or tearing it, and will at the same time be stiff enough to maintain its position against the draft ofthe roving. Floss is pounded in with a brush among the points 18, as shown in Figs. 5, in order to reduce the length of the points, as well as to stiffen and brace them, the projecting length of the points being about one thirty-second to one-sixteenth of one inch, according to the size of the roving. As an equivalent for this construction of draftroller, a cylinder having its surface driven nearly full of points, arranged in a manner similar to that herein shown, could be used; but the construction showni is preferred.

The false twister j' is journaled in the standard e on the top plate, L, and consists of a hollow cylinder having a pulley secured on it, and provided with a flat perforated point at its end, as shown in Figs. 2 and 4..

The tension-bar d is placed in front of the draft-roller c, and between two lines drawn tangen tto the second feed-roll N and to the upper and lower sides of the draft-roller c, its usual position being merely on a level with the shaft of the draft-roller, as shown in drawings; but this can be varied somewhat to suit any change in the size of the draft-roller or to suit the length of circumference of the draft-roller, upon which it may be found necessary to impale the roving to prevent any slipping of the same over the draft-roller.

Now, to spin any required roving into yarn the wheels U X-U are so adjusted on the shaft W as to give to the feed-rolls N N and draftroller c the same surface velocity, and to give to the drawing-rolls P P a surface velocity one, two, or three times as great as that of the draftroller c, depending on the amount of draft required on the roving, and the relative sizes of the gears gt' or lm are so adjusted as to cause the drawing-rolls P P to deliver the roving t0 the ring-and-traveler mechanism at such a velocity as shall allow of the yarn receiving the proper twist. The roving is then passed between the feed-rolls N O N, under the tensionbar d, over the draft-roller c, where it is impaled on the points 18, and from thence it passes through the false twister f and through one or more of the holes in the flat point of said twister to the drawing-rolls P Q P, and through the traveler a on the ring s to the bobbin 16.

The draft-roller c could be raised by the screws 26 26 until Vits upper surface was considerably above a line drawn from the center of the false twister f to the upper surface of the second feed-roll N, when it is evident that the roving would be impaled upon a considerable portion of the circumference of the draft-roller without the aid of the tension-bar; but this we do not here claim, as the tensionbar is much better than this arrangement, as it applies the force which presses the roving down onto the points of the draft-roller close up to the said roller, and hence avoids the danger of breaking weak rovings by the strain which would be liable to be thrown on them were the tension-bar omitted and the draftroller elevated, as just described.

The distance of the draft-roller from the false twister should be as small as possible in all cases, as the nearer it is placed to the false twister the less \will be the velocity of rotation required for said twister, and there will also be much Aless danger of the roving breaking from a rotary motion between the draft-roller and false twister.

From the foregoing description, it is readily seenthat the feed-rolls merely serve as aineans of preserving an even tension on the roving as it pasess under the tension-bar to the draft-roller,

, and have nothing whatever to do with any draft to be produced on the roving, that the points of the draft-roller receive the fibers of the roving between them and hold them in a condition of .parallelism as they are being drawn out by the drawing-rolls; that the false twister serves as a means of twisting the curly iibers of the roving together, so as to prevent them separating from each other when released from the points 0f the draft-roller, thus ining as a means of gradually raising the ringrail as the bottom iills up with yarn.

Vhere the roving is run from the condenser on spools which are regularly unwound by mechanism on the spinning-frame, the use of the feed-rolls N N is unnecessary, and they may be dispensed with.

Vhat we claim herein as new and of our invention, and desire Patent, is-

1. Th e combination, in a spinner for carded wool, of a set of drawingrolls, a false twister, a draft-roller covered with points, and a tensionbar, the several parts being arranged and operating substantially as and for the purpose specified.

2. The combination, in a spinner for carded wools, of aset of feed-rolls, a tension-bar, a draft-roller covered with points, a false twistker, and a set of drawing-rolls, the several parts being arranged and operating as and for the purpose herein specified.

3. The combination, in aspinncr for carded wool, of a tension-bar, draft-roller covered with points, false twister, set of drawing-rolls, ring and traveler, spindle with removable bobbin, and mechanism for operating the ringrail so as to wind the yarn evenly on the bobbin, the several parts being arranged and operating as and for the purpose specied.

As evidence that we claim the foregoing,we have hereunto set our hands in the presence of two witnesses.

\ PAUL BRAMVELL.

W. C. BRAMVELL.

Vitnesses:

XVILL. H. WVooD, Trios. B. Woon, JOB Armor, R. W. Dawson.

vto secure by Letters 

